[jira] [Created] (IOTDB-2140) merge throw NullPointerException

["Chao Wang (Jira)" <ji...@apache.org>]

Chao Wang created IOTDB-2140:
--------------------------------

             Summary: merge throw NullPointerException
                 Key: IOTDB-2140
                 URL: https://issues.apache.org/jira/browse/IOTDB-2140
             Project: Apache IoTDB
          Issue Type: Bug
          Components: Core/Compaction
    Affects Versions: 0.12.3
            Reporter: Chao Wang


[MergeThread-0] | root.group_4-1639446442038 starts to merge 50 series | org.apache.iotdb.db.engine.merge.task.MergeMultiChunkTask (MergeMultiChunkTask.java:132) 
[MergeThread-0] | Runtime exception in merge root.group_4-1639446442038 | org.apache.iotdb.db.engine.merge.task.MergeTask (MergeTask.java:108) 
java.lang.NullPointerException: null
    at org.apache.iotdb.db.metadata.MManager.getSeriesType(MManager.java:712)
    at org.apache.iotdb.db.engine.merge.manage.MergeResource.getUnseqReaders(MergeResource.java:177)
    at org.apache.iotdb.db.engine.merge.task.MergeMultiChunkTask.mergePaths(MergeMultiChunkTask.java:181)
    at org.apache.iotdb.db.engine.merge.task.MergeMultiChunkTask.mergeSeries(MergeMultiChunkTask.java:145)
    at org.apache.iotdb.db.engine.merge.task.MergeTask.doMerge(MergeTask.java:177)
    at org.apache.iotdb.db.engine.merge.task.MergeTask.call(MergeTask.java:106)
    at org.apache.iotdb.db.engine.merge.task.MergeTask.call(MergeTask.java:51)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)



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